PRODIGIT
3260A Series Operation Manual 17
3.1.10 Level A/B Key and LED Monitor
Depressing Level Key will be B , further depressing will be A, further depressing will
be B again and so on. B means Level B (LED ON), e.g., to move out Level A, then
move in Level B. A means Level A (LED OFF), e.g., to move out Level B, then move
in Level A.
Under the condition of setting Memory A or B, this key is mainly for setting the values
of groups A/B for rapid switching load current or resistance.
3.1.11 Limit ON/OFF Key and LED indicator
Being depressed, LED will come on and in LIMIT ON condition:
3.1.11.1 Both upper and lower 4-1/2 digit monitors display the upper and lower limit
of the voltmeter with the unit as
〝
Vrms
〞
.
3.1.11.2 Both upper and lower 4-1/2 digit monitors display the upper and lower limit
of the ammeter with the unit as
〝
Arms
〞
.
3.1.11.3 Both upper and lower 4-1/2 digit monitors display the upper and lower limit
of the watt meter with the unit as
〝
W
〞
3.1.11.4 Both upper and lower 4-1.2 digit monitors display the upper and lower limit
of the VA meter with the unit as
〝
VA
〞
When depressing is made to five time, LED will come off and in Limit OFF
condition. Please refer to 3.1.13.2 for upper and lower limit adjustment.
3.1.12 SENSE ON/OFF Key and LED Indicator
The voltmeter and internal trigger circuit of 3260A Series High Power Electronic Load
can be controlled by this Key thus determining whether or not the input to the
voltmeter is made from the AC input end (OFF) or Vsense end (ON). Upon Vsense
ON, LED indicator will be ON and the 4-1/2 digit voltmeter can display the voltage
read from Vsense. Upon Vsense OFF, the 4-1/2 voltmeter can display the voltage
read from AC input end.
3.1.13 Load Current Rough Tuning/Fine Tuning, Up/Down Key
3.1.13.1 Under usual or PRESET Light Lit Condition:
3.1.13.1.1
：
Set Value Rough Tuning Up/Down Key.
3.1.13.1.2
：
Set Value Fine Tuning Up/Down Key.
3.1.13.2 Upon LIMIT Light ON:
3.1.13.2.1
：
Upper limit value Up/Down Key.
3.1.13.2.2
：
Lower limit value Up/Down Key.
3.1.13.3 Upon FREQ light ON:
3.1.13.3.1 FrEq:
is freq. Rough Tuning Up/Down Key
is freq.
Fine Tuning Up/Down Key.
3.1.13.3.2 bAn:
is Fine Tuning Up Key
is Fine Tuning Down
Key.
3.1.13.3.3 Sync:
is ON Key
is OFF Key.
3.1.14 √2, 2.0, 2.5, 3.0, 3.5 Key and LED indicator.
This key only functions upon C.C. mode and all LED off upon Linear C.C. mode and
C.R. mode.
These keys are used to change the current C.F. (Peak Factor) of C.C. mode.
However, in change of BANK, these keys will define different C.F. values.
